Control circuit and method for controlling the speed of an electric fuel
pump for an internal combustion engine equipped with fuel injection
    1.
    发明授权
    Control circuit and method for controlling the speed of an electric fuel pump for an internal combustion engine equipped with fuel injection 失效
    用于控制配备有燃料喷射的内燃机的电动燃料泵的速度的控制电路和方法

    公开(公告)号:US4940034A

    公开(公告)日:1990-07-10

    申请号:US294732

    申请日:1989-01-06

    IPC分类号: F02M37/08 F02D41/30 G05D13/04

    CPC分类号: F02D41/3082 G05D13/04

    摘要: The invention is directed to a control circuit for controlling the speed of an electric fuel pump for an internal combustion engine having fuel injection and includes a speed limit-value comparator for controlling the speed or delivery rate of the fuel pump to a value below the minimum speed or delivery rate for a speed of the engine above a specific predetermined limit speed which is impermissibly high. The minimum speed or minimum delivery rate is then the delivery rate which is required for at least building up the system pressure in the fuel injection system.

    摘要翻译: 本发明涉及一种用于控制具有燃料喷射的内燃机的电动燃料泵的速度的控制电路,并且包括用于将燃料泵的速度或输送速率控制在低于最小值的值的速度限制值比较器 发动机的速度或速度高于不允许高的特定预定极限速度。 最小速度或最小输送速率是至少在燃料喷射系统中建立系统压力所需的输送速率。

    Device for measuring a pulsating variable in an internal combustion
engine
    2.
    发明授权
    Device for measuring a pulsating variable in an internal combustion engine 失效
    用于在内燃机中测量可变的装置

    公开(公告)号:US5069063A

    公开(公告)日:1991-12-03

    申请号:US536619

    申请日:1990-07-11

    IPC分类号: G01D3/00 G01D3/02 G01L23/08

    CPC分类号: G01D3/02 G01L23/08

    摘要: A device for detecting a pulsating variable by fixed-angle dual sampling with slight filtering in which the pulsating variable is filtered and/or damped in such a manner that a quasi-sinusoidal variation is obtained. The signal thus obtained is a crank-angle-synchronous signal sampled twice per duration of one period. From these two measurement values, a current mean value of the pulsating variable is determined once per duration of the period.

    摘要翻译: PCT No.PCT / DE89 / 00062 Sec。 371日期1990年7月11日 102(e)日期1990年7月11日PCT提交1989年2月2日PCT公布。 出版物WO89 / 07241 日期1989年8月10日。一种用于通过具有轻微过滤的固定角度双重采样来检测脉动变量的装置,其中脉动变量被滤波和/或阻尼,从而获得准正弦变化。 这样获得的信号是一个周期持续时间采样两次的曲柄角同步信号。 根据这两个测量值,脉冲变量的当前平均值在周期的每个持续时间被确定一次。